Yunyou (CN) mailbox provider
According to Live Direct Marketing's daily Tranco top-1M scan (September 11, 2026), Yunyou (CN) is the mailbox provider for 139 domains — 0.02% of 666,213 domains with MX records. Detection method: primary MX record (lowest preference).
Key facts
- 139 domains in the Tranco top-1M use Yunyou (CN) (0.02% of domains with MX records).
- Snapshot date: 2026-09-11 — recomputed every day.
- Strongest TLD: .com (68.3% of its domains).
- Region skew: Global / US-skewed.
- Directory category: hosting mail bundle.
Why Yunyou (CN) appears in this category
Chinese hosting (Yunyou.top operator).
We classify it as a hosting mail bundle from primary MX record (lowest preference) matching a maintained provider rule. This is infrastructure attribution from public DNS, not evidence of a direct contract or exclusive use.
Yunyou is a mailbox provider appearing as a primary MX record across websites in the Tranco top-1 million list. Its presence is concentrated among smaller websites rather than the largest consumer or enterprise brands, with notable prevalence in the .com domain space.
For email senders, this distribution pattern means Yunyou handles inbound mail for a dispersed set of smaller properties across the internet. Comprehensive deliverability assessment must account for long-tail operators like Yunyou to understand whether email is reaching all intended recipient segments, particularly when targeting beyond the dominant mailbox providers.
Where Yunyou (CN) sits in the Tranco ranking
| Tranco rank band | Domains | Share of its base |
|---|---|---|
| Top 1,000 | 0 | 0.0% |
| Top 10,000 | 0 | 0.0% |
| Top 100,000 | 16 | 11.5% |
| Top 1,000,000 | 122 | 87.8% |
| Unranked | 1 | 0.7% |
Top-level domain split
| TLD | Domains | Share | |
|---|---|---|---|
| .com | 95 | 68.3% | |
| .cn | 20 | 14.4% | |
| .net | 8 | 5.8% | |
| .com.cn | 8 | 5.8% | |
| .hk | 2 | 1.4% | |
| .cc | 2 | 1.4% | |
| .biz | 1 | 0.7% | |
| .top | 1 | 0.7% | |
| .co | 1 | 0.7% | |
| .vip | 1 | 0.7% |
Long-tail concentration and full-spectrum testing
Yunyou operates across smaller .com websites rather than among the major consumer mailbox providers, placing it in the long tail of mail infrastructure. Understanding its filtering policies, bounce handling, and acceptance criteria is essential for senders aiming to assess deliverability across all website tiers. Omitting long-tail operators from testing programmes risks creating blind spots in reach assessment and may conceal delivery issues affecting portions of your recipient base.
See the full Yunyou (CN) data page (KPI cards, trend, sample domains) →
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Frequently asked questions
Should I include Yunyou in my email deliverability testing?
Yes, if your recipients include users at smaller .com websites. Yunyou's role in handling inbound mail for long-tail domains means testing against it helps ensure email delivery assessment covers your full audience, not only the largest consumer brands.
How many domains use Yunyou (CN)?
139 domains in the Tranco top-1M use Yunyou (CN) as their mailbox provider as of September 11, 2026 (0.02% of domains with MX records), according to Live Direct Marketing's daily DNS scan.
Is Yunyou (CN) common enough to affect email deliverability testing?
Yunyou (CN) accounts for 0.02% of domains with MX records in the top 1M. Whether you should seed a test mailbox there depends on how much of your audience it represents — the co-usage table above shows the services it appears alongside most.
Which countries or TLDs use Yunyou (CN) most?
Yunyou (CN)'s largest TLD is .com (68.3% of its domains); it appears across 10 TLDs in total.